MFO-3 Mid-range Focus Optimizer 3

81503 MFO-3

81501 MFO-1

81203 SMC-3

Dimensions(OD x H mm)

Ø 84 x 114.2mm

Ø 70 x 26mm

Ø 70 x 32mm

Weight in air

602g

218g

307g

Buoyancy in water

Negative 120g

Negative 150g

Negative 215g

Lens FOV/Converted FOV(*¹)

23°/38°

Max. Magnification (*¹)

0.9X

1.2X

2.3X

Working distance (*¹)

0-1500mm

108-1005mm

46-98mm

Lens construction

4 elements in 3 groups

3 elements in 2 groups

3 elements in 2 groups

Lens coatings

Anti-reflection

Anti-reflection

Anti-reflection

Mount thread

M67

M67

M67

Depth rating

100m

100m

100m

*1. Tested with Nikon Nikkor Z MC 105mm f/2.8 VR S Macro lens

Lens

Sensor

format

Lens FOV.

Max.

Magnification

Working

distance

Converted FOV.

Canon RF 100mm f/2.8 L Macro IS USM (with Modified Aperture)

FF

24°

0.9X

0-1490mm

40º

Canon EF 100mm f/2.8L Macro IS USM

FF

24°

0.9X

0-1490mm

40º

Nikon NIKKOR Z MC 105mm f/2.8 VR S Macro

FF

23°

0.9X

0-1500mm

38°

Nikon AF-S VR Micro-NIKKOR 105mm f/2.8G IF-ED

FF

23°

0.8X

5-1490mm

38°

Nikon AF-S Micro NIKKOR 60mm f/2.8G ED

DX

26.5°

0.5X

0-1500mm

45º

Sony FE 90mm f/2.8 Macro G OSS

FF

27°

0.8X

0-1500mm

45º

Fujifilm GF 120mm f/4 Macro R LM OIS WR

Medium 

Format

25.7°

0.9X

15-1500mm

43º

Olympus M. Zuiko Digital ED 60mm f2.8 Macro

M43

20°

0.5X

0-1500mm

33º

OM System M.Zuiko Digital ED 90mm f/3.5 Macro IS PRO(Normal macro mode)

M43

14°

0.7X

0-1480mm

23º

Canon EF-S 60mm f2.8 Macro USM

APS-C

24.5°

Panasonic Lumix S 100mm f2.8 Macro

FF

24°